Biomedical device powered by triboelectric nanogenerator

• A remarkable efficiency of converting mechanical motion into electrical energy, enabling optimal harvesting of ambient vibrations from human activities or other sources. • Designed to be compact and lightweight, making it suitable for embedding into biomedical devices. Its small size allows for seamless integration without affecting the device's dimensions or mass. • The TENG is made of high-quality materials, offering excellent durability and longevity. It can withstand the challenges of continuous operation in medical settings, providing consistent power generation for a long time. • The generator is a reliable source of energy from motion or vibration, regardless of the frequency or amplitude of the input. It can adapt to various environmental conditions and user preferences, ensuring stable performance. Biomedical devices play vital roles in health monitoring. Operability of these devices is hindered by their limited battery life. In vivo monitoring, diagnosis, and treatment have become challenging. The proposed Triboelectric Nanogenerator helps in overcoming the shackles of battery life. This article describes the process involved in the development of a healthcare device powered by triboelectric effect. In this work a contact-separation mode based triboelectric nanogenerator (TENG) has been used to power the device. TENG uses triboelectric phenomenon to transform mechanical energy into electrical energy. A contact-separation mode TENG operates through the interaction of two triboelectric materials. These materials act as an anode and a cathode, respectively, and develop opposite charges when brought into contact. Upon separation, the charged surfaces retain their individual charges, creating a potential difference between the materials. This difference generates an electrostatic field that drives the flow of electrons from one electrode to the other. As the electrons return, the field collapses, and the materials come back into contact, repeating the cycle. The device has been used to power a heart rate monitoring system. Experimental results demonstrate the output performance and long-term durability of the TENG device. Furthermore, future research, challenges and opportunities have been elaborated.